Box-blank-stapling machine



Nov. 17, 192 1,552,412

E. CRAIG BOX BLANK STAPLING MACHINE Filed April 22, 1922 5 Sheets-Sheetl JiiuzrdOr fikiwa m2 Ora/Q Nov 17,1925. 1,562,412

E. CRAIG BOX BLANK STAPIJING MACHINE Filed April 22, 1922 5 sheets-sheet2 Nov. 17, 1925. 1,562,412

, E. CRAIG BOX BLANK STAPLING MACHINE Filed April 22, 1922 5 Sheets-Shet5 E JiZUQZ /ZDP dmaml 1 5 m? Nov. 17,1925. 1,562,412

E. CRAIG Box BLANK STAPLING MACHINE Filed April 22, 1922 s Sheets-Shet 4I Edward mgg Nov. 17, 1925.

' E. CRAIG BOX BLANK STAPLING MACHINE 5 Sheets-Sheet 5 Filed April 22,1922 Winn" 1211/2 Hi0 r iidwamzf- Cna Patented oe-1 7, 1925.

UNITED STATES EDWARD CRAIG, OF ST. JOSEPH, MICHIGAN, ASSIGNOR TO SARANAC'AUTOMATIC MACHINE CORPORATION, OF- BENTON HARBOR, MICHIGAN, ACORPORATION OF DELAWARE. I.

II?OX-BLAN'K-STA]?LIN'Gr MACHINE. I

A Application filed April 22, 1922. Serial No. 555,938.

[ all whom it may-concern:

Be it known that I, EDWARD CRAIG, a citizen of the United States, and aresident of St. Joseph, Berrien County, Michigan, have invented acertain new and useful Improvementin BoX-l3lank-Stapling Machines, ofwhich the following is a specification.

This invention relates to wire bound box blank machinery of the kind in,which the staplers are capable of alternately driving long and shortstaples, inasmuch as the blanks made are each composed of alternatesections provided with cleats andfintermediate sections which have nocleats. In a machine of this character, the long staples are driventhrough the veneer or: other sheet material into the cleats crosswise ofthe binding wires. Then the stapling mechanism is automaticallycontrolled to stop the driving of the long staples and to start thedriving of the short staples, so that only short staples are driven inthe next section, which has no cleats, these short staples be 'ingpreferably just-long enough to fasten the binding wires to the veneer orthe sheet material of this section, an-d't'o be properly clinched on theunder-surface er the blank. Furthermore, in the operation of a'machin'eof this character, it becomes desirable to prevent the driving ofstaples between blanks, of course, {inasmuch as this would merely be awaste of staple wire. The invention relates, therefore, moreparticularly to the automatichcontrol of tl1e stapling mechanism, whichis desirable in a box blank machine of this character. 1 A

Generally stated, therefore, the object of the invention is tofl-providea novel and improved construction whereby the stapling A mechanism of amachine of this character is automatically controlled in a mannertending to insure more satisfactory results than heretofore, to "providean improved construction and arrangement whereby the action of thestapling mechanism. is automatically controlled by the operation of theratchet feed'mechanism'by which the work is fed along to give the blankmaterials a step by step forward feeding motion below the staplers; toprovide an improved construction and arrangement whereby certainfeatures of construction and combinations and methods of operationheretofore considered necessary are rendered unnecessary and entirelydispensed with in the automatic control of the action of the staplingmechanism to produce the desired result; and to provide certain detailsand features of con struct'ion and combinations tending to increase thegeneral efficiency and the desirability a wire bound box blank machineof this particular character.

To these-and other useful ends, the in-' vention consists in the mattershereinafter set forth and claimed, and shown in the accompanyingdrawings, in which,

Fig. 1 is a rear endelevation of a wire bound box blank machineembodying the principles of the invention:

Fig. '2 is a vertical section on line 22 in Fig. 1. 1

Fig. 3 is a vertical section on line 3--3 in Fig. 1. v V

Fig. 4 is an enlarged detail sectional view showing certain elements ofthe mechanism for feeding the staple wire to the staplers.

Fig. 5 is a detail view of one of the cams of said wire feedingmechanism.

Fig. 6 is a similar view showing another cam of said wire feedingmechanism.

Fig. 7 is a detail sectional view, on the same scale as Figzil, showingone of the wire feeding devicesfor feeding the staple wire tothestaplers.

Fig. 8 is a side elevation of the mechanism shown in Figs. 4 and 7looking in a direction zit right anglcs'to the axes of the feed rolls.

Fig. 9 is'a-n enlarged plan View of certain portions of the machine,illustrating the arrangement whereby the traveling feed belt blanks madeby said machine.

Fig. 12 is a side elevation of one of the cams or engaging portions ofthe two feed rolls which feed the relatively long lengths of wire toproduce the relatively long staples.

As thus illustrated, the machine com- PATENT OFFICE. I

which feeds the blank materials forward lit-ll .support the variousoperative'parts in suitably elevated positions. Parallel andlongitudinally disposed guides 2 are provided to support the endlesschains or feed belts 3 which are employed to move the blank materialsintermittently along below the staplers to receive thestaples whichsecure the binding wires 4 and 5 to the sheet material sections 6, 7, 8and 9 as Well as to the cleats 10 and 11, during the operation of makingthe blanks. The front end portions of the machine are not shown, but itwill be understood that the machine is provided at both ends withsprocket wheels 12 to support the link belts 3, and it will also beunstaples.

derstood that said belts travel in the direc tion indicated by thearrows shown in Figs, 2 and 10, so that the blanks are discharged at therear end of the machine, after passing out from under the staplers. Thetwo outside staplers 13 are double, so to speak, being constructed todrive either short staples or long staples, as fully shown and describedin prior Patent No. 1,258,989, dated lHarch 12, 1918. On the other hand,the two inside or intermediate staplers 1a are constructed to drive onlyrelatively short In this way, the long staples 15 are driven crosswiseof the binding wires 4 and through the sheet material sections 6 v and 8into the cleats 10 and 11, thereby to secure the wires and sheets andcleats togethern On the other hand, the short staples 16-are drivencrosswise of the binding wires 4 and through the sheet material sections7 and 9, to secure the wires to these sections,

but these staples are clinched to the under 7 side, of the blank. Inaddition, short staples 17 are driven crosswise of the-binding wires 5through all four sections of the blank, and

are clinched on the under side thereof,

whereby the blank when made has four binding wires and four cleats, thesections 7 and 9 of the blank being cleatless, whereby the blank isadapted for use in making wire bound boxes'by the method which involvesthe attaching'of some-of the cleats to theblank and the other cleats tothe heads or end walls, as described in said prior patent, whereby it isnot necessaryto.

, nismwhich feeds the'staple wire to the staplers; in'Fig. 1, thestaplers 13 have staple'wire feeding devices 18 and '19, with tubes-20-and21 leading therefrom to the staplers tofeed the staple wire the.

desired manner. The feeding devices 18 are constructed to feed arelatively short length wire, each time they are actuated, in order toproduce the short staples previously mentioned; but, on the other hand,the feeding devices 19 are adapted to feed a longer length of wire inorder to produce the relatively long staples previously mentioned. Thefeeding devices 22 are allotted to the staplers 14: and are adapted tofeed a short length of wire to produce the relatively short staples 17previously 'mentioned' The staplers 14:, as previously indicated, donothing but drive short staples and operate on each section of theblank, but the double staplers 13 alternatively drive long and shortstaples l5 and 16, as shown in Fig. 11, and the wire feeding devicesthus provided for feeding the staple wire are automatically controlledby the step by step feeding motion of the feed belts 3 previouslymentioned. Before describing this automatic control, the construction ofeach staple wire feeding device will be described and explained. Eachwire feeding device comprises a relatively'large feed roll 23, as shownin Fig. 7,

and a relatively small idler feed roll 24, and the feed rolls 23 of thefeeding'devices 18 and 22 each have a relatively short cam or peripheralfeeding portion 25, whereas these feed rolls 23 of the feeding devices19 have relatively long cams or peripheral feedingportions 26, as shownin Fig. 12, thereby to insure the feeding of the relatively long andshort lengths of wire previously explained. Thefeed rolls 23 are allmounted on the rotary transverse shaft27 which is supported in bearings28 at the opposite sides of the machine. On the other hand, the idlerrolls 24 are supported on eccentrically mounted axles 29, the eccentricortions 30 being mounted in bracket bearings 31 which are. supported onthe transverse cross bar 32 of the machine. side of-the bracket bearing31, the eccentric portion 30 is provided with a removable collar 33provided with a flexible arm 34 .havilfg the end thereof provided withan engaging portion 35, in the manner shown It will be seen that therolls 23 and 29 are provided with gear teeth 36 by which they are gearedtogether, whereby the staple wire 37, as shown in Fig. 7, is fed betweenthe rolls in the desired manner.' The wire 37 is 'first'fed through aguide or tension device 38. before it enters between the feed rolls, sothat the wire will be straightened before being fed into the tube 20which leads to the stapler. The brackets 31. and the bearings 28 servealso to support a transverse shaft 39 upon which are mounted the At theother I cams 10, 41 and 42, the'feeding devices 18, each having one ofthecams 40, and the feeding devices '19 each having one of the cams 41,while the devices22 are each provided wit-h one of the cams 42, but eachfeeding device being provided with one of the engaging portions 35 toengage its allotted cam, and these engaging portions being in absolutealignment transversely of the machine. Al-

so, the said cams are mounted intheir allotted feeding devices in therelative arrangement shown in Figs. 4, 5 and 6, whereby the engagingpdrtions 43 of the cams 41 occupy positions opposite the spaces betweenthe engaging portions 44 of the cams 40, and whereby the engagingportions of the cams 42 are in transverse alignment with the engagingportions 43 and 44, so that the spaces 46 of the cam 42 are intransverse alignment with the spaces which would be observed betweentheportions 43 and 44 when the cams are viewed in the direction of theircommon axis. It will be seen that'when the engaging portions 35 arebeing held by the engaging portions .44, the feed rolls 23 are thenoperative to co- Operate with the feed rolls 24, as the latter .are heldin raised position, thus enabling the rotation of the shaft 27 to feedrelatively short lengths of wire to the staplers 13 through the tubes 20previously mentioned;

. but, on the other hand, when the engaging,

portions 35 of the feeding devices" 19 are held in raised position bythe engaging portions 43, the feeding devices 19 are then operatiye tofeed relatively long. lengths of wire through the tubes 21 to thestaplers 13, and at such times the feeding devices .18 are out ofcommission, inasmuch as their engaging portions 35 are at such timeresting in spaces between theengaging portions 144 of. the cams 40'previously mentioned; 'and,"of course, while the engaging portions 35 ofthe feeding devices 18 are in engagement fun with the engaging portions44, so that the cam portions 25 are feeding-relatively shortlengths ofwire, the feeding devices .19 are inoperative and do not feed an wire,.for the-reasonthat-at such time their engaging portions 35 arerestingin the spaces 'be'-" tween the engaging portions 43; theltwofeeding devices of each double stapler 131 thus alternating or takingturns, so to speak in feeding wire to this stapler, The shaft 39 isintermittently rotated, as will hereinafter more fully appear, in thedirection indicated T by the arrow in Fig. 4,'so that thesaid theengaging portion 35 of any wire feed feeding devices 18 operate to feedrelatively short lengths of wire necessary to roduce the relativelyshort staples 1 6, and .t en the feeding devices 19 are automaticallybrought into operatiom'in place of the feeding devices 18, thereby todrive the relatively long staples 15, as shownin Fig. 11; for wheningdevice is down, and is not held in raised pos tion by one of the fourelevationsor engaging portions of. its allotted cam, this feeding deviceis inoperative to feed any wire, as at such time the feed roll 24 isslightly depressed and does not hold the wire against the larger orupper feed roll.

per feed roll, and hence a forward movement is given the wire for eachcomplete rotation of the upper feed roll 23 of each feeding device. v

The shaft 27 rotates continflously during the operation of the machine,but the shaft 39 operates intermittently. It is this shaft 39 and thecamsthereon which control automatically the driving of the staples, foruntil this shaft 39 is given another partial rota.- tion the driving ofthe staples will continue without any changein the character thereof. Inthefeeding devices 22 the engaging portions 35 rise and fall on the cams42, and when these engaging portions 35 are in the notches or spaces 46of said cams, the engaging portions 35 of all the other wire feedingdevices are in the spaces between the cam portions 43 and 44, so that atsuch time all of the wire feeding devices are inoperative or out ofcommission, and no staple wire will idesirable to accurately space thestaples at opposite sides of the narrow gaps or joints formed betweenthe four sections of the same blank; The shaft 39 is intermittentlyrotated by the ratchet wheel 47 rigidly secured to the shaft at one endthereof. The feed belts 3'are actuated ,intermittently by the ratchetwheel 48 on one end of the s aft 49 which supports the sprocket wheels2, this, ratchet feed mechanism for producing an intermittent or step bystep feeding motion of'the-work serving to move the blank materialsahead after each sta le driving operation. For' this purpose, t eoscillating or vibratory arm 50, T which is mounted to swing on" theshaft 49,'is provided with a i'at.ehet dog 51 to engage the ratchetwheel 48,"and the uppenen'd of said arm 50 is connected by an adjustablepitm'an 52 with the belllcrahk 53, whichfis pivoted at 54 upon thelower'portion of the body frame 1 of themachine. The staplers areoperated by cam devices 55, of a well known character, on the rotaryshaft 56, and this'shaft hasan eccen-- trie device .51 atone endthereof- A pi'trnan' 5.8 connectstheeccentric device 57 with the shorterarm of the bell crank 53, and with this arrangement the ratchet wheel 48is T given'a forward turn each time the staplers riseaften' drivingstaples in the blank mate-.'

rials; and, on the other hand, the feed dog 51 is retracted each timethe staplers move downward to drivestaples. The upper end of the arm 50is provided with a pivoted rod or long ratchet dog59 for engaging theratchet wheel 47, and it will be seen that the A latter has twice asmany teeth as the cam 42 previouslymentioned and described. This ratchetdogor pawl 59 is controlled by a rotary shield 60 which is rotatablymounted on the shaft 39, and this shield 60 is automatically controlledby the feeding motion of one of the feed belts previously mentioned. Forthis purpose, the feed dogs 61 on said belt 3, which feed thematerialsforward below the staplers, have cams 62, and the other feeddogs 63 have similar cams 64, while the other feed dogs 65 have cams 66,all of said cams being arranged in position to engage the roller 67 onthe pivoted arm 68 which swings horizontally at one side of the machine.Said arm is connected by a rod 69 with the upper end of the bell crank70, and the inner end of the latter is connected by a rod 71 with theshield 60, whereby the latter is actuated each. time one of said cams 62or 64 or 66 engages the roller 67, in a manner that will be readilyunderstood. A spring 72 is attached to the bell crank 70 to hold theroller 67 normally in position to be engaged by the cams on the blanksor feed dogs of the belt 3, whereby the intermittent feeding motion ofthe blank materials is uti lized to automatically and intermittentlyrotate the shaft 39 to change the positions of the cams and 41 and 42previously described. The wire feed engaging portions 25 and 26 arepreferably on segmental blocks 73 which are removable from the feedrolls 23, so that repairs or substitutions can be made, if necessary,"to vary the length of feed, or for any other purpose.

Now assuming that the blank materials are in position on the machine, inthe guides 2, and in engagement with the feed dogs 61, 63 and on thefeed belts 3, and the machine is started, the operation is as follows:Before the cam 66 strikes the roller 67, the engaging portions 35 of allthe staple wire feeding devices 18, 19 and 22 are down, so that all ofthe lower idler rolls 24 are slightly depressed, whereby no staples arebeing driven. However, as soon as the cam 66 does Strike the roller .67,the r shield 60 is mloved enough to allow the ratchet pawl 59 to engagethe ratchet wheel 7 47 thus turning the shaft 39 enough to v. bring of te devices 19 pnder. their slotted enaging ,portions 35, thus throwingthe feed devices 19 into. operation, because the lower 7 feed rolls 24'thereof arebrought up tight 1 against the wire 37, and the latter isthen fed forward by the peripheral engaging portions 26 of these twofeed devices. -As soon as one of the cam engaging ortions 43 shaft 39stands still while the long staples 15 are being'driven in the section 6of the box blank. At the same time, of course, the cams 42 of the staplewire feeding devices 22 are in such position that theirallotted engagingportions 35 are held up by projections or elevations 45 on these twocams, whereby the staples 17 are driven simultaneously with the sta les15 in the first section 60f the box blan Of course, the

work is being moved intermittently along,

in the manner explained, and as soon as the cam 62 strikes the roll 67the shield 60 is again moved to control the ratchet mechanism 47 and 59,but as this cam 62 is somewhat longer, it allows or permits a greaterextent of operation of the ratchet mechanism, and a further rotation ofthe shaft 39, so that while all the portions 35 first drop into notcheson their respective cams, the ortions 35 of the feed devices 18 and 22 ten immediately rise on the cam portions 44 and 45, in a manner that willbe readily understood, leaving the portions 35 of the feeding devices 19depressed in notches of their allotted cams; and this having takenplace, it follows that the feed devices 18 and 22 are working to feedstaple wire, while the feed vdevices 19 are' the staples 16 and 17 arenow driven in the section 7 of the blank; The work having been movedalong 'step by step, until the cam 62 "engages the roller 64,'the shieldor guard 60 is again actuated to control the ratchet mechanism 47 and59, with the result, as will be. obvious, that the feed devices 18 arerendered inoperative, and that the feed devices 19 and 22 are renderedoperative, inasmuch as this cam 64 is as long as the cam 62, so that thefeed devices 18 are rendered inoperative to feed any iwire; andthishaving occured, the staples 15 and 17 are now (1 i-ven in the section 8of the blank. Again the work moves forward, .step. by step, during thedriving of the staples in. the section 8, until finally the other cam 62enga'gesthe roller 67, wrth the same result described in connection withthe previous cam 62, inasmuch as it is now desired to drive only shortstaples 16 and 17 in the section 9 of the blank. Durin the driving ofthese staples the work is mg intermittently moved forward, each feedmovement taking-place just after the staplers have. inserted fourstaples in a row across none of the staple wire feed devices are 7'feeding any wire "all of the lower feed rolls 24 being in their epressedpositions. Therefore, while the space between W's blank and the next oneis moving along under the staplers no staples are being driven, but thedriving of long staples 15 and short staples 17 in the first section 'ofthe next blank will be started as soon as another cam 66 strikes theroll 67 to again actuate the shield or guard 60 and thereby controlftheratchet mechanism 47 and 59 in the manner previously described. It willalso be seen that the automatic control thus exercised by the travelingmotion of the blank materials not only serves to automatically changefrom long staples to short staples, and vice versa, while the blank istraveling under the staplers, but also prevents driving of staplesbetween blanks; and, in addition, the transition from long staples toshort staples, or

. vice versa, is of suc acharacter that no staples will be drivenbetween the sections of the same blank. The operations of the differentparts are so timed that a notch 46 of each cam 4C2 is under the engagingportions 35 while the gap between two blanks is passing under thestaplers, and this is also true while the gap or joint between two sec-1 tions of the same blank is passing under the staplers. As the cams 62and 66 are; on

the blocks or feed dogs which carry the materials forward, and inasmuchas these blocks are adjustable on the link belts 3 for blanks ofdifferent lengths, it follows that the automatic stapler ,control' is.automatically adjustable for blanks of different lengths, thepositioning of the blocks on the belts or chains serving automaticallyto readjust the automatic stapler control accordingly. The shaft 27 isrothting continuous- 13 so that the various staple wirefeeding devicesare all in motion, but no staple wire feed device can properly functionto feed wire unless-its allotted lower feed roll 24 is in raisedposition against the staple wire. Consequently, thecessation of thefeeding of the staple wire is not brought aboutv by stopping the motionof the staple wirefeedin devlces, but merely by depressing the rofis 24enough to. cause slippage of the rolls 'on the wire, inasmuch as therolls will not have an efiective gripon the staple wire 37 suiii'cienttorfeed it" along in the'desire 'manner;' and this pressure of the rolls24 Iagainst the staple wire can be varied or regated by aslightadjustment of the collars 33 on t e eccentric portions 30, itbeing observed that the rolls 24 are in efiect mounted on cranks bywhich they are raised and lowered by the up and down motion of theportions in themanner described. The portions 34 are preferablyflexible, as stated, in order toafford a spring connection through whichyielding pressure is communicated to the rolls '24 to hold them againstthe under sideof the rolls 23, and to permit the rolls 24 to move downslightly as soon as the feeding portions 25 and 26 strike the staplewire. This is a very easy and quiet action, at the same time absolutelycertain, so that the control of the feeding of the staple wipe is ofsuch a character that the changing from long to short staples, and viceverse, .is accomplished in the desired manner, with certainty andwithout danger V under side of the blank may be of any suitablecharacter, such as the-means shown and described in said prior patent,and no illustration or descri tion thereof is necessary. L The ratchet weel 47, it will be seen, has any suitable or desired number of teeth, asfor example, it may have sixteen teeth, as shown, so t at the shaft 39is given a one-sixteenth ro ationeach time this ratchet is operated bythe long awl 59 in the manner previously describe Thus, some of the camson the chain or, link belt control the shield 60 in a manner to permittwo successive actuations of this ratchet device, as n changing fromlong toshort staples, and vice versa, while other cams permit only oneactuation of the ratchet, as is necessary in either starting or stoppingthe driving of staples by all of the sta lers.

Inasmuch as the feed rol mechanism for feeding the wire for the staplesis operated continuously, by continuous rotation of the rplls of eachdevice, it is obviousthat the machine can be operat with considerablezspeed, without interfer ng with the however, of the wire for thestaples," is auto matically ntrolled by the movement of one roll towarand away from the other, in the manner shown and described, so thattheintermitt'ent'feeding' of the wire is automatically stopped when itis'necessary or desirable todiscontinue the insertion of staples at anydesired or predetermined point or points in the work-passing under thestaplers. Preferably, as shown, the mechanism for move ing one rolltoward and away from the other feeding motion of the work feeding meansis automatically controlled by the forward or moresections thereof, thecombination of one or more staple wire feeding devices to intermittentlyfeed the wire for the long staples, one or more staple wire feedingdevices to intermittently feed the wire for the short staples, means forcontinuously operating all of said staple wire feeding devices, andinstrumentalities to.

automatically control the grip 'of said deviceson the wire, thereby toprevent'the feeding of wire for the long staples when it is desired todriveshort staples, and to. prevent the feeding of wire for shortstaples when it is desired to drive long staples, without interruptingthe driving motion of 39 said devices.

2. A structure as specified in claimf 1, said instrumentalit'iescomprising means for feeding the work to advance the blankmaterials intopositiofito receive the staples,

and means automatically controlled by the feeding motion of the blankmaterials to cause said staple wire feeding devices to either grip orrelease the wire therein.

3. A structure-as specified in claim 1,- said means r J roll havingcontinuous rotation, and means controlled by said instrument-alities andthereby operative for moving the idler roll toward and away from thedriven roll to start orstop the intermittent feeding of the staple wire,without interrupting the intermittent feeding of the work orthe continu-.ous rotation of said driven roll.

'7. A structure as specified in claim 1, said instrumentalitiescomprising means includinga ratchet mechanism for causing step by stepforward feeding movement of the blank materials into position to receivethe staples, and means actuated by said ratchet mechanism tointermittently control the function- J ing of said staple wire feedingdevices. y. 8. A- structure as specified in claim 1, saidinstrumentalities comprising a ratchet mechv anlsni, means operatedthereby to control" the functioning of said staple wire feeding"devices, means to feed the blank materials forward into position toreceive the staples,

and means whereby the action of said ratchet mechanism is Iautomatically controlled by the forward feeding motion of the blankmaterials.

intermittent feeding device therefor com- 9. 'ln-a stapling machine, astaple wire I prising .a driven ,roll' to rotate continuously,

' 'ian idler rollto press the staple wire against i.-.'t'he 5driven.roll, mechanism to automatically "move-the idlerfroll toward and awayfrom .r'the'driven roll to start or stop the intermittent "feedingmotion of the staple wire, thereby to prevent the driving of one ormorestaplesand thus automatically control the functioning of the feedingdevice without sto ping the'continuous rotation thereof,

.work ceding means, and instrumentalities instrumentalities comprisingan endless belt controlled ,by the work feeding motion to automaticallycontrol said mechanism,

for feeding the blank .materials, cams mounted on said belt, and meanstoengage said cams to control the functioning of said staple wire feedingdevices.

. instrumentalities comprising a rotary shaft,

I blank materials-and cams carried by said a functioning of said staplewire feeding de-j work positioning means, together with means to engagesaid cam's'to controlthe .vices. i v

6. Astructure as s ecified'in claim 1, said staple wire feeding evficeseach comprising driven rollinan idler roll, the driven a. Astructure' asspecified in claim 1, said" whereby the. action'of the stapling machineis automatically controlled by thefeeding motion of the work.

10. In a wire boundbox blank mac ine for making box blanks by staplingindmg wires and cleats to sheet material, the combination .of means forfeeding the blank materials into position to receive the staples,

with spaces between the blanks, staple wire feeding devices for feedingthe 'wire from which the staples are made, means forcontinuously-operatingsaid devices, and .auto- .matic.-'instrumentalities controlled by; the

feeding motion of the blank materials to automatically control thefunctionln of said staple wire feedingdeviccs wit out stopping. thecontinuous 'actuationof said 1 devlces to prevent the driving of staplesbe-- tween blanks.

11. A structure said instrumentalities -.comp'rismg which-move alpngwiththe blank materials, means to engage said cams, andmeans controlledthereby to cause staple wire as specified in'claim 1 0,

cams

feeding devices to-either'gri or-release-the I staple wire, operative tor ease the staple Y between the blanks is w re while the :F- P 7 passingthe stapoperation position.

12. A structure as specified in claim 10,

said staple wire feeding devices comprising a continuously rotatingdriven roll, an idler roll, and m eans automatically controlled b saidinstrumentalities for moving the 0 i erroll toward and awayfrom thedriven roll to control the feeding action without :stopping the rotationof the driven roll.

13. A structure as specified in claim 10,

said instrumentalities being adapted and op- 15 erative toalso preventthe driving of staples said instrumentalities compri between sections ofthe same blank. I

14. A structure as specifiedin claim 10, means to automatically causesaid wire ceding devicesto release their grip on t c stapling -wire'therein while the space between the l position.

blanks is 15. A structu e said means for continuously operating saiddevices -comprisin an overhead f shaft' orthe of t e staples, and

gear' fromsaid shafttb said devi 16.

and staples therein thereby to produce wire bound box blanks, thecombination -of continuously driven feed' rolls to feed theintermittently for the-staples v mechanism'for moving one roll toward anaway from the other, without stopping thecontinuous rotary motion,thereby to govern the intermittent feeding of the wire, mstrum'entalities controlled by the feeding motion of the work toautomatically control said mechanism, thereby to prevent the driving ofstaples between'blanks, and for sup lyingbinding passing-the staplingoperation he specified in claim 1,

a machine for feeding materials V, to, saidblanks, in. position to'bethereto by the staples,

whereby the action of said continuous rota tion and the intermittentfeeding motion of the staple wire are automatically controlled by; thefeeding motion of the work.

17. In a work feeding and step 1118' chine, for making wire bound bolt banks the combination of continuously driven feed roll mechanism to feedthe wire for, the

staples adapted by continuous rotation to feed the wire intermittently,instrumentalities controlled by the feeding motion of the work toautomatically control the action of said continuous rotation on thewire, without stopping the rotary motionfthereby to 'prevent the drivingof staples between blanks, and means for supplying binding wire to saidblanks, in position to be fastened there- -to 'by the staples, wherebythe feeding motion of the staple is automatically controlled by thefeedinagotion ofthelwofk.

18. In a-stapling mac e,'a stapler, work feeding mechanism for' feedingwork be-- n'eath' the stapler, continuously, driven feed rolls forfecdmgto the stapler, mecha-' mm for moving one roll toward and away from theother without stopping .the constant rotary motion whereby to govern thenamed mechanism.' 1 19. In a stapling'machine, a stapler, work 10intermittent feeding of the wire, and instrumentalities actuated by saidwork feeding I mechanism to automatically control said lastfeedingTmecha'nism for feeding work beneath the stapler, continuouslydriven feed roll mechanism to'ffeedwire' to the stapler EDWARD cane.

